<?php

/* 
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
require 'db_conn.php';
$id=isset($_GET['id']) ?$_GET['id']: 0;//判断地址栏有没有ID的值，如果有


$username=$_POST["username"];
$sex=$_POST["sex"];
$message=$_POST["message"];
$imgurl=$_POST["imgurl"];
$sql="update t_message set username='$username',sex='$sex',message='$message',imgurl='$imgurl' where id=$id";

 $result=$db->query($sql);//
 
 if ($result)
 {
     echo "<script language='javascript' type='text/javascript'>";
     echo "alert('修改成功');";
     echo "window.location.href='index.php';";
     echo "</script>";
 }
 else {
     echo "<script language='javascript' type='text/javascript'>";
     echo "alert('修改失败！');";
     echo "window.location.href='index.php';";
     echo "</script>";
        }
